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Impact of quantification method on microfiber assessment - A comparative analysis between mass and count based

R Rathinamoorthy1, S Raja Balasaraswathi1

  • 1Department of Fashion Technology, PSG College of Technology, Coimbatore, 641004, India.

Journal of Environmental Management
|September 26, 2023
PubMed
Summary
This summary is machine-generated.

Microfiber release from polyester fabrics during laundry varies significantly based on measurement method. Weight-based quantification shows substantially higher microfiber release than count-based methods, highlighting potential inaccuracies in current textile pollution studies.

Keywords:
Count-based methodsKnitted fabricMicrofiberPolyesterQuantification methodsWeight-based method

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Area of Science:

  • Environmental Science
  • Textile Science
  • Pollution Studies

Background:

  • Microfibers from textiles are emerging anthropogenic pollutants, with domestic laundry being a primary release source.
  • Existing studies report diverse microfiber quantities due to varied quantification methodologies.
  • Discrepancies in reported microfiber release highlight the need for standardized and accurate measurement techniques.

Purpose of the Study:

  • To analyze and compare microfiber release from knitted polyester fabric using both count-based and mass-based quantification methods.
  • To investigate the significant discrepancies observed between different microfiber measurement techniques.

Main Methods:

  • Four distinct knitted polyester fabrics were subjected to microfiber release analysis.
  • Microfiber quantification was performed using three established counting processes from existing literature.
  • Direct weight difference estimation was employed as a mass-based quantification method.

Main Results:

  • Direct counting revealed an average microfiber release of 13.28–33.16 microfibers/sq.cm.
  • Direct weight estimation indicated an average release of 0.0664 ± 0.0289 mg/sq.cm.
  • Weight-based methods showed 41.3–42.9 times higher microfiber release compared to direct counting, potentially due to detergent surfactants, water contaminants, or fabric finishes.

Conclusions:

  • Significant quantitative differences exist between count-based and mass-based microfiber analysis of polyester textiles.
  • Weight-based methods, while simpler and faster, may overestimate microfiber release due to extraneous substances.
  • Future research should focus on refining mass-based quantification to minimize error and improve accuracy in assessing textile microfiber pollution.